1XML::LibXML::Common(3)User Contributed Perl DocumentationXML::LibXML::Common(3)
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NAME

6       XML::LibXML::Common - Constants and Character Encoding Routines
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SYNOPSIS

9         use XML::LibXML::Common;
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11         $encodedstring = encodeToUTF8( $name_of_encoding, $sting_to_encode );
12         $decodedstring = decodeFromUTF8($name_of_encoding, $string_to_decode );
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DESCRIPTION

15       XML::LibXML::Common defines constants for all node types and provides
16       interface to libxml2 charset conversion functions.
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18       Since XML::LibXML use their own node type definitions, one may want to
19       use XML::LibXML::Common in its compatibility mode:
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21   Exporter TAGS
22         use XML::LibXML::Common qw(:libxml);
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24       ":libxml" tag will use the XML::LibXML Compatibility mode, which
25       defines the old 'XML_' node-type definitions.
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27         use XML::LibXML::Common qw(:gdome);
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29       ":gdome" tag will use the XML::GDOME Compatibility mode, which defines
30       the old 'GDOME_' node-type definitions.
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32         use XML::LibXML::Common qw(:w3c);
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34       This uses the nodetype definition names as specified for DOM.
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36         use XML::LibXML::Common qw(:encoding);
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38       This tag can be used to export only the charset encoding functions of
39       XML::LibXML::Common.
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41   Exports
42       By default the W3 definitions as defined in the DOM specifications and
43       the encoding functions are exported by XML::LibXML::Common.
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45   Encoding functions
46       To encode or decode a string to or from UTF-8, XML::LibXML::Common
47       exports two functions, which provide an interface to the encoding
48       support in "libxml2". Which encodings are supported by these functions
49       depends on how "libxml2" was compiled. UTF-16 is always supported and
50       on most installations, ISO encodings are supported as well.
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52       This interface was useful for older versions of Perl. Since Perl >= 5.8
53       provides similar functions via the "Encode" module, it is probably a
54       good idea to use those instead.
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56       encodeToUTF8
57             $encodedstring = encodeToUTF8( $name_of_encoding, $sting_to_encode );
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59           The function will convert a byte string from the specified encoding
60           to an UTF-8 encoded character string.
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62       decodeToUTF8
63             $decodedstring = decodeFromUTF8($name_of_encoding, $string_to_decode );
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65           This function converts an UTF-8 encoded character string to a
66           specified encoding. Note that the conversion can raise an error if
67           the given string contains characters that cannot be represented in
68           the target encoding.
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70       Both these functions report their errors on the standard error. If an
71       error occurs the function will croak(). To catch the error information
72       it is required to call the encoding function from within an eval block
73       in order to prevent the entire script from being stopped on encoding
74       error.
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76   A note on history
77       Before XML::LibXML 1.70, this class was available as a separate CPAN
78       distribution, intended to provide functionality shared between
79       XML::LibXML, XML::GDOME, and possibly other modules. Since there seems
80       to be no progress in this direction, we decided to merge
81       XML::LibXML::Common 0.13 and XML::LibXML 1.70 to one CPAN distribution.
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83       The merge also naturally eliminates a practical and urgent problem
84       experienced by many XML::LibXML users on certain platforms, namely
85       mysterious misbehavior of XML::LibXML occurring if the installed (often
86       pre-packaged) version of XML::LibXML::Common was compiled against an
87       older version of libxml2 than XML::LibXML.
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AUTHORS

90       Matt Sergeant, Christian Glahn, Petr Pajas
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VERSION

93       2.0201
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96       2001-2007, AxKit.com Ltd.
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98       2002-2006, Christian Glahn.
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100       2006-2009, Petr Pajas.
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LICENSE

103       This program is free software; you can redistribute it and/or modify it
104       under the same terms as Perl itself.
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108perl v5.30.0                      2019-07-26            XML::LibXML::Common(3)
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